S235JR Channel steel, commonly known as UPN (European standard) or UNP (international designation) sections, is a fundamental and widely used structural carbon steel product. Its distinctive "C" or "U" shape provides an excellent combination of good mechanical properties and high moment of inertia, making it a versatile choice for a multitude of load-bearing applications in construction and manufacturing.
Product Name | |
Standard | AISI, ASTM, DIN, JIS, GB,JIS, SUS, EN, etc. |
Material | S235JR |
Surface | black painted, anti rust varnished, PE coated, anti rust oiled, galvaniZed, checkered, color coated |
Commonly Used Size(h×b×d, mm) | 50×37×4.5,63×40×4.8,80×43×5.0,100×48×5.3,120×53×5.5,140×58×6.0,or as per your request |
h | 50~400mm, according to customer's requirement |
b | 37~104mm,or as per your request |
d | 4.5~14.5mm,or as per your request |
Technical Methods | Hot Rolled/Cold Rolling |
Packaging | According to customer required |
Application | Applied in multiple fields such as architecture, bridges, machinery, energy, etc. etc. |
Packing | Standard Seaworthy Packing (Plastic film in the first layer,second layer is Kraft paper. Third layer is galvanized sheet) |
MOQ | 1 Ton, more quantity price will be lower |
Key Characteristics & Material Grade
The designation "S235JR" is defined by the European standard EN 10025-2, which specifies the technical delivery conditions for flat and long products of non-alloy structural steels.
S (Structural Steel): Denotes its primary use in construction and structural applications.
235: Indicates the minimum yield strength of 235 Megapascals (MPa) at a thickness of ≤ 16mm. This is a measure of the steel's resistance to permanent deformation.
JR: Signifies the impact energy (toughness) value at room temperature (+20°C / 68°F). "JR" guarantees a minimum of 27 Joules, making it suitable for use in environments where moderate stress and impact are expected.
This grade is considered a general-purpose, non-alloy quality steel with good weldability and formability.
Mechanical Properties
The mechanical properties are guaranteed by the EN 10025-2 standard. Key values include:
Yield Strength (ReH): ≥ 235 MPa (for nominal thickness ≤ 16mm)
Tensile Strength (Rm): 360 - 510 MPa
Elongation at Break (A5): ≥ 26% (indicating good ductility)
Impact Energy (KV): ≥ 27 J at +20°C
Common Applications
Due to its strength, availability, and cost-effectiveness, S235JR channel steel is employed in countless projects:
Building and Construction: As purlins, roof trusses, framing systems, braces, and supports in industrial buildings, warehouses, and residential structures.
Heavy Equipment & Machinery: For constructing frames, bases, and supports for machines, conveyors, and agricultural equipment.
Transportation and Automotive: In the fabrication of truck trailers, vehicle chassis, and container frameworks.
Infrastructure: Used in bridges, platforms, walkways, and guardrails.
General Fabrication: A staple material for fabricating racks, shelves, workbenches, gates, and various custom frames and supports.
Advantages of S235JR Channel Steel
High Strength-to-Weight Ratio: Provides significant structural support without excessive weight.
Excellent Weldability and Machinability: Can be easily joined, cut, drilled, and formed using standard workshop methods.
Cost-Effective: As a widely produced standard grade, it offers great value for its performance.
Versatility: Available in a wide range of standard sizes (e.g., UPN 80 to UPN 400) to suit various design requirements.
Durability: Offers reliable performance under static and dynamic loads in normal atmospheric conditions.
Standards and Equivalents
European Standard: EN 10025-2 (UPN profiles are specified in EN 10365).
International Equivalent: ASTM A36 (USA) is a very similar general-purpose structural steel and is often considered a functional equivalent for many applications, though chemical and mechanical properties are not identical.
Sign up for our newsletter
Copyright © 2024 Shandong Ruixiang Iron and Steel Group Co., Ltd. All rights reserved
SitemapThis website uses cookies to ensure you get the best experience on our website.